Is there something else you can use besides an insect repellent to avoid getting stung by mosquitos?

Long sleeves. Wear long sleeves, long pants, socks & shoes, even gloves. Don't go out at dusk. Snapple drinkers know that eating bananas attracts mosquitoes. That appears to be an urban myth.
Rosemary. The herb rosemary is used in africa as a mosquito repellent. It can be rubbed on the skin and clothing.